DRILL & BLAST TUNNELING

At Frontier-Kemper we are skilled at conventional Drill-and-Blast excavation as well as the Shotcrete Method (also known as the Sequential Excavation Method or New Austrian Tunneling Method)

Highway tunnels are often large in cross-section and require conventional Drill-and-Blast excavation methods. Frontier-Kemper led the joint venture projects on the Hanging Lake Tunnels on I-70 in Glenwood Springs, CO, the Haiku Approach & Tunnels on Hawaii's H3, and the Silver Cliff Tunnels on the shore of Lake Superior in Wisconsin.